punching hole sheet material:stainless steel sheet Technique:Perforated Filter Rating:70% Thickness:0.2--10mm Punching hole meshMaterial: stainless steel plate, low carbon steel plate, iron plate, copper plate, brass plate, aluminum plate, nickel plate and kinds of nonmetal plates. Hole Shapes: round, length, square, scale hole, hexagonal hole, plum blossom and so on.Processing: Computerized ...